Besides their origin, another common denominator of the three musicians is their being pupils in Vienna of the Imperial Kapellmeister Johann Joseph Fux, one of the greatest musical authorities of the 18th century, whose work Gradus ad Parnassum was widely used as a textbook of composition and counterpoint for many decades.

In the standard theoretical environmental literature, Gradus and Smulders (1993), van Ewijk and van Wijnbergen (1995) and Pautrel (2008, 2009), among others, have demonstrated how the negative impact of pollution on learning abilities of individuals can be transmitted to economic growth and shown that a better environmental quality and a higher long-term level of growth are mutually compatible.

In a stratified, large-scale sample of military reservists, Gradus and colleagues (2008) examined whether symptoms of depression explained the relationship between military sexual harassment experiences and alcohol misuse, and they found that more severe sexual harassment was related to greater depression symptoms among female reservists.

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